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boost.python/SimpleExample - PythonInfo Wiki
Suppose we have the following C++ API which we want to expose in Python:
#include <string>
namespace { // Avoid cluttering the global namespace.
// A couple of simple C++ functions that we want to expose to Python.
std::string greet() { return "hello, world"; }
int square(int number) { return number * number; }
}Here is the C++ code for a python module called getting_started1 which exposes the API.
#include <boost/python.hpp>
using namespace boost::python;
BOOST_PYTHON_MODULE(getting_started1)
{
// Add regular functions to the module.
def("greet", greet);
def("square", square);
}That's it! If we build this shared library and put it on our PYTHONPATH we can now access our C++ functions from Python.
>>> import getting_started1 >>> print getting_started1.greet() hello, world >>> number = 11 >>> print number, '*', number, '=', getting_started1.square(number) 11 * 11 = 121
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